A burning or plastic smell from the vents can be a failing motor, overheated wiring, or debris on the heat exchanger.
Shut the system down immediately and call a specialist. This can be a safety issue.
Typical fix cost in Round Rock: $150-$900. Do not attempt work on live systems - get a licensed specialist on it.
| Item | Range |
|---|---|
| Diagnosis | $75-$150 |
| Repair | $150-$900 |
If there is risk of damage, safety hazard or no service at all, treat it as an emergency and act now. Otherwise schedule a standard visit.
Regular maintenance catches most of these early - see the maintenance checklist in the emergency guide.